An 85-year-old Nepali died Saturday while attempting to scale Mount Everest to regain his title as the oldest person to climb the world's highest peak, officials said.

Min Bahadur Sherchan died at the base camp on Saturday evening but the cause of death was not immediately clear, said Dinesh Bhattarai, chief of Nepal's Tourism Department.

Mountaineering official Gyanendra Shrestha, who is at the base camp, said the cause was likely cardiac arrest but he could not give details because of a poor telephone connection.

The grandfather of 17 and great-grandfather of six first scaled Everest in May 2008, when he was 76 — at the time the oldest climber to reach the top.

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His record was broken by then 80-year-old Japanese Yuichiro Miura in 2013.

Before leaving for the mountain last month, Sherchan had told The Associated Press that once he had completed the climb and become famous, he intended to travel to conflict areas to spread a message of peace.

He had trained for months before the attempt and had said he did not suffer from any respiratory problems and blood pressure was normal.